/* 下载页面专用样式 */
.downloads-header {
  padding: 40px 0 20px;
  text-align: center;
}

.downloads-header h1 {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--accent);
}

.downloads-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 下载分类筛选 */
.downloads-filters {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 20px;
  border: var(--border);
  background: var(--primary);
  color: var(--text);
  border-radius: 25px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
}

/* 下载资源网格 */
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  margin-bottom: 40px;
}

/* 修复下载项布局 - 使用Flexbox确保按钮在底部 */
.download-item {
  position: relative;
  background: var(--card-bg);
  border-radius: 12px;
  padding: 25px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border: var(--border);
  margin-bottom: 20px;

  /* 新增：使用Flexbox布局 */
  display: flex;
  flex-direction: column;
  height: 100%;
  /* 确保所有卡片高度一致 */
  min-height: 420px;
  /* 设置最小高度确保一致性 */
}

.download-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.download-icon {
  font-size: 3rem;
  margin-bottom: 15px;
  text-align: center;
}

.download-item h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--text);
  text-align: center;
}

.download-item p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
  text-align: center;
  flex-grow: 1;
  /* 允许描述文本区域扩展 */
}

.download-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

/* 价格标签样式 */
.price-tag {
  position: absolute;
  top: 15px;
  right: 15px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.price-tag.free {
  background-color: #4CAF50;
  color: white;
}

.price-tag.paid {
  background-color: #FF9800;
  color: white;
}

/* 价格显示样式 */
.price-display {
  margin: 10px 0;
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
}

.price-amount {
  color: #FF9800;
}

/* 按钮容器 - 新增 */
.download-btn-container {
  margin-top: auto;
  /* 将按钮推到容器底部 */
  text-align: center;
  padding-top: 15px;
}

/* 统一按钮样式 */
.download-btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--primary);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  min-width: 140px;
  /* 设置最小宽度确保按钮大小一致 */
  text-align: center;
  box-sizing: border-box;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.free-btn {
  background-color: #4CAF50;
}

.free-btn:hover {
  background-color: #388E3C;
}

.paid-btn {
  background-color: #FF9800;
  position: relative;
  /* 为二维码提示框定位 */
}

.paid-btn:hover {
  background-color: #F57C00;
}

/* 二维码提示框样式 */
.qr-tooltip {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  z-index: 100;
  width: 280px;
  text-align: center;
  margin-bottom: 15px;
  border: 2px solid #f0f0f0;
}

.qr-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 10px solid transparent;
  border-top-color: white;
}

.qr-tooltip img {
  width: 220px;
  height: 220px;
  margin-bottom: 12px;
  border: 1px solid #eee;
  border-radius: 8px;
  object-fit: contain;
  display: block;
}

.qr-tooltip p {
  margin: 0;
  font-size: 0.9rem;
  color: #666;
  font-weight: 500;
}

/* 关键修复：当鼠标悬停在收费按钮上时显示二维码 */
.paid-btn:hover .qr-tooltip {
  display: block;
}

/* 分页样式 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 50px;
  gap: 8px;
}

.pagination-button {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: var(--border);
  background: var(--primary);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  box-shadow: var(--card-shadow);
}

.pagination-button:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.pagination-button.active {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(78, 110, 242, 0.3);
  border-color: var(--accent-dark);
}

.pagination-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--card-shadow);
}

.pagination-button:disabled:hover {
  background: var(--primary);
  color: var(--text);
}

.pagination-pages {
  display: flex;
  gap: 4px;
  margin: 0 12px;
}

.pagination-ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .downloads-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .downloads-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .downloads-grid {
    grid-template-columns: 1fr;
  }

  .downloads-filters {
    gap: 10px;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
  }

  .pagination {
    flex-wrap: wrap;
    gap: 6px;
  }

  .pagination-pages {
    order: -1;
    width: 100%;
    justify-content: center;
    margin: 0 0 10px 0;
  }

  .pagination-button {
    min-width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }

  /* 移动端二维码优化 */
  .qr-tooltip {
    width: 260px;
    padding: 15px;
  }

  .qr-tooltip img {
    width: 200px;
    height: 200px;
  }
}

@media (max-width: 576px) {
  .download-item {
    min-height: 380px;
    /* 移动端减小最小高度 */
  }

  .qr-tooltip {
    width: 240px;
    padding: 12px;
  }

  .qr-tooltip img {
    width: 180px;
    height: 180px;
  }

  .download-btn {
    min-width: 120px;
    /* 移动端减小按钮最小宽度 */
    padding: 10px 20px;
  }
}